Finding the Fourth Proportional to 8,571,706.19, 12,857,631.39 and 2,181,959.63
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Solution
The fourth proportional to 8,571,706.19, 12,857,631.39 and 2,181,959.63 is: 3,272,957.79
Step by Step Solution
- Step 1: Write the proportion equation
8,571,706.19 : 12,857,631.39 = 2,181,959.63 : x - Step 2: Convert to fraction form
8,571,706.19/12,857,631.39 = 2,181,959.63/x - Step 3: Cross multiply
8,571,706.19x = 12,857,631.39 × 2,181,959.63 - Step 4: Simplify right side
8,571,706.19x = 28,054,832,566,112.63 - Step 5: Solve for x
x = 28,054,832,566,112.63/8,571,706.19 - Step 6: Final answer
x = 3,272,957.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.